Disk closure for milk-bottles.



C. J. SCHUSTER.

DISK CLOSURE FOR MILK BOTTLES.

APPLICATION men FEB. 1. 1915.

1,162,5 1 9. Patented Nov. 30, 1915.

n cer.

DISK CLOSURE FOR MILK-BOTTLES.

Specification of Letters Patent.

Application filed February 1, 1915. Serial No; 5,514.

To all whom it m ay concern.

Be it known that I, CARL J. SoHUs'rER, a

I citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful ,lmprovements in Disk Closures for Milk-Bottles, of which the following is a specification.

The present invention relates to certain new and useful Improvements in Disk Clostruction of disk closures for milk bottles and like receptacles, and has for its object to provide a device of this character which embodies novel features of construction whereby all danger of infection is avoided and the closure can be readily removed at any time without the necessity of using an opener.

A further object of the invention is to provide a disk closure for bottles and like receptacles which both closes the mouth of the bottle and covers the top thereof so as to protect the mouth of the bottle and pre-, vent leakage, which can be easily removed or replaced without the necessity of touch ing that portion of the disk which comes into contactwith the milk, and which avoids the necessity of providing the bottle neck with an interior shoulder or seat such as is ordinarily used and which collects and holds dirt in such a manner that it is almostimpossible to keep it clean.

With these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the'inven tion, reference is to be had to the following description and accompanying drawlng, in which Figure 1 is a transverse sectional viewthrough one form of disk closure constructed 1n accordance wlth the lnventlon. Fig. 2 is a similar View through a modlfied form of disk closure. Fig. 3 is a'similar viewshowlng another modification of the dlsk closure. Fig. {i is a vertical sectional view through the mouth of a bottle constructed to receive the disk closure shown by Fig. 1. Fig. 5 is a similar view showing a modified form of bottle adapted to be used in connection with the disk closure shown by Fig. 2. Fig: 6 is also a similar view showing a further modified construction of bottle adapted to be used in connection with the disk closure shown by vertical sectional view through a bottle neck constructed as shown by Fig. 4 and having a,d1sk constructed in accordance with Fig. 1 applied thereto. Fig. '8 is a similar view through a bottle neck constructed as shown by Fig. 5 and having a disk constructed In accordance with Fig. 2 applied thereto. Flg. 9 is a similar view through a bottle Patented Nov. 30, 119115.

Fig. 3. Fig. .7 is a neck constructed as shown by Fig. 6 and having a disk constructed in accordance with Fig.3 applied thereto. Fig. 10 is a transverse sectional view through a disk closure, showing a still further modification of the invention. Fig. 11 is a vertical sectional view through a construction of bottle neck adapted to be used in connection with the disk closure construction illustrated by Fig. 10.. Fig. 12 is a vertical sectional view through a bottle neck constructed as shown by Fig. 11 and having a disk closure constructed in accordance with Fig. 10 applied thereto. Fig. 13 is a transverse sectional view through a still further modification of the disk construction. Figs. 14 and 15 are similar views showing additional modifications.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

The invention consists essentially in constructing the bottle neck, with an inwardly projecting annular bead having rounded edges, and providing a disk formed with a substantially flat upper surface and having edges adapted to fit against the top of the bottle, said disk beingalso formed at a point spaced from the edge thereof w th a downwardly projecting annular retaining flange adapted to extend lnto the m'outh of the bottle and engage the annular bead therein to seal the bottle and retain the disk closure in proper position thereon.

Fig. 1 illustrates one manner of constructing the disk closure, the numeral 1 deslgnating the substantially fiat central portion thereof which closes the mouth of the bottle, and the numeral 2 the annular dependving retaining flange, said flange being formedby making an annular crimp in the sheet material of which the disk closure is formed and flaring in width toward the edge thereof so that it will interlock in an efi'ective manner with the bottle neck. This ing or applymg of V the collection of dirt. bottle neck may be provided with the usual enlargement 6, and in the present instance;

depending flange 2 is spaced from the edge of the disk, the edge portion 1 thereof being adapted to project over and rest upon the top of the bottle and being in the same plane as the substantially flat central portion of the disk so that the entire closure presents a flat upper surface and does not provide any pockets within which an appreciable amount of dirt or water can collect. In the disk construction illustrated by Fig. 1 a depending annular flange 3 is provided for the purpose of facilitating the removthe disk to the bottle. Fig. 4 illustrates a bottle neck construction adapted to be used in connection with this form of disk, while Fig. 7 shows the disk as seated in operative position on the mouth of the bottle. The numeral 4 designates the body of the bottle, and 5 an inwardly projecting annular bead at the mouth of the bottle neck, said head having rounded ed es so that no sharp corners are provided or The exterior of the an annular groove or depression 7 is formed in the upper portion of the'enlargement 6-.

When the disk closure is applied to the mouth of the bottle and seated thereon by applying suflicient pressure thereto to force the annular retaining flange 2 into engagement with the interior bead 5 of the bottle neck, the edge portion 1; of the disk rests squarely upon the substantially flat top 8 of the bottle neck, while the depending peripheral flange 3 overhangs the annular groove 7 so as to provide an annular channel 9 between the closure and the receptacle for the reception of the finger of the user or al-suitable tool for engaging the disk to remove it from position. The annular retaining flange 2 of the disk preferably has a slight spring action so that it will slightly contract while the disk is being forced into position and then expand under tointerlock therewith and hold the disk securely in position. In this connection it will be noted that the lower edge of the retaining flange 2 is rounded and that the retaining flange is formed of two thicknesses of material and flares toward the free edge thereof. A thickened portion or head is thus provided at the edge of the retaining flange which is adapted to expand under the annular bead 5 when the disk is forced into position.

Fig. 2 illustrates a slight modification which is identical in construction with Fig. 1, with the exception that the depending peripheral flange 3 is omitted.

Fig.5 shows a bottle construction adapted to be used in connection with the modified disk shown by Fig. 2, while Fig. 8 shows the disk as seated in position on the mouth of the bottle.

the annular bead 5 so as The bottle shown in Figs. 5 and 8 is substantially the same as that shown by Fig. 4:, and the same reference numerals have been applied thereto, the only difference being that the annular groove 7 of the former construction is omitted. The disk is applied in the same manner and operates in the same way to seal the bottle and cover the top thereof.

A further slight modification of thedisk construction is illustrated by Fig. 3. This disk is substantially the same as that shown by Fig. 2, although the edge portion 1 thereof, corresponding to the edge portion 1 of the previously described disk, is concave in cross section.

Fig. 6 shows a bottle neck construction adapted to be employed in connection with the disk shown in Fig. 3, while Fig. 9 shows the disk as seated in position upon the bottle neck. This bottle. neck shown by Fig. 6 is substantially the same as that shown by Fig. 5, although the top edge 8 thereof, instead of being flat as in the former cases is provided with an annular depression or concavity adapted to receive the concave edge portion 1 of the disk closure. An exceptionally tight joint is thus provided.

A further modified construction of the disk closure is shown by Fig. 10. This construction is similar to that show-n by Fig. 1, with the exception that the depending annular retaining flange 2 is initially in the form of an open crimp, the side walls of the crimp being spaced at the top thereof. The flange is formed substantially as in the previous case, with the exception that the crimp is left open at the top instead of being closed.

Fig. 11 shows the bottle neck in position to receive the cap, while Fig. 12 shows the cap or disk closure as applied to the .bottle. In the act of applying the disk closure to the bottle the spaced side walls of the retaining flange are forced toward each other and brought into contact at the top of the flange. A tight seal is thus insured between the disk and the bottle.

Fig. 13 illustrates a slight modification of the disk construction illustrated by Fig. 2, the only difference being that the annular retaining flange 2 flares downwardly instead of projectingat substantially right angles to the plane of the disk. Such a construction may be found advantageous under certain conditions.

ing peripheral flange 3, corresponding to the flange 3 of Fig. 1 maybe provided, and

the retaining flange 2 is suitably bent so that it will expand readily under the bead 5 of the bottle neck.

I In Fig. 15, 1 designatesthe central portion of the disk, 12 the returned edge portion thereof, and 2 the annular retaining flange, the free edge of the said flange being rolled inwardly so as to provide a head which, as in the previous case, is adapted to expand under the head 5 of the bottle neck to lock the bead in position thereon.

Disk closures constructed in accordance with this invention have a substantially flat upper surface and can be charged into a tubular magazine without sticking together. No time and energy is wasted in looking for an opener and the danger of infection by an opener is avoided. No cream is spilled while opening the bottle and neither is there any danger of chipping the mouth of the bottle.' The, disk closures completely cover the top of the bottle so that leakage is impossible and there is no danger of a small leak starting the souring process and con veying the same into the interior of the bottle. Dust, ice and the like which may collect on top of the cover does not endanger the contents of the bottle and the covers can be removed and placed in position without any necessity for touching with the fingers those portions of the covers which come into contact with the milk." The annular retaining flanges preferably have a slight spring action, although this is not necessary, since they may merely be made slightly larger than the interior of the bottle neck so that when crushed inwardly and distorted a tight frictional engagement with the bottle neck will be produced. Also, the disks with the retaining flanges'may be molded from suitable material instead of being formed from sheet material.

Having thus described theinvention, what I claim as new and desire to secure by Letters Patent, is

1. The combination of a receptacle having an interior annular bead in the mouth thereof, and a disk closure formed of sheet material and having an annular retaining flange projecting downwardly therefrom, said flange being formed by an annular crimp in the sheet material and having spaced side walls which are initially spaced apart: and subsequently crowded together by engagement with the annular bead in the g mouth of the receptacle to provide a tight oint.

2. The combination of a receptacle having an interior annular bead in the mouth thereof, and a disk closure formed of sheet material and provided with a depending peripheral flange and a downwardly projecting annular retaining flange adapted to enter the mouth of the receptacle and expand 1 under the annular bead thereof, said retaining flange being formed by an annular crimp in the sheet material and the mouth of the crimp being initially open, although it is closed by the crowding together of the spaced side Walls of the retaining flange when tion.

3. The combination of a receptacle hav-' ing an annular bead in the mouth thereof, and a disk closure formed of sheet material and having a substantially flat and continuous upper surface, said disk member being provided at a point spaced from the edge thereof with an annular retaining flange adapted to be forced into the mouth of the receptacle and engage the annular bead thereof, said retaining flange being formed by an annular crimp in the sheet material of the disk and the crimp being initially open at the mouth thereof, although the mouth thereof is closed by the crowding together of the spaced walls of the crimp when the closure is applied to the receptacle.

4. The combination of a receptacle having an interior bead in the mouth thereof, and a disk closure formed of sheet material and having a substantially flat and continuous upper surface, said disk member being formed with a depending peripheral flange adapted to overhang the edges of the mouth of the receptacle, and being also provided at a point spaced from the edge thereof with an annular retaining flange adapted to be forced into the mouth of the receptacle and engage the bead thereof, said retaining flange being formed by an annular crimp 1n the sheet material and the mouth of the crimp being initially open although it is in presence of two witnesses.

CARL J. SOHUSTER.

Witnesses:

W. H. Gone, E. T. NDY.

the disk is forced into sealing posi 

